MUSLIM 1080l:
from Ibn ʿUmar —
The month is thus, and thus, and thus, and he flapped his hands with all their fingers twice. but at the third turn, folded his right thumb or left thumb (in order to give an idea of twenty-nine).
مسلم ١٠٨٠l:
عن ابن عمر —
قَالَ رَسُولُ اللَّهِ ﷺ الشَّهْرُ كَذَا وَكَذَا وَكَذَا وَصَفَّقَ بِيَدَيْهِ مَرَّتَيْنِ بِكُلِّ أَصَابِعِهِمَا وَنَقَصَ فِي الصَّفْقَةِ الثَّالِثَةِ إِبْهَامَ الْيُمْنَى أَوِ الْيُسْرَى